Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1591 | Reduce Array Size to The Half | Medium | ArrayHash TableGreedy |
| 1592 | Reducing Dishes | Easy | ArrayDynamic ProgrammingGreedy |
| 1593 | Reduction Operations to Make the Array Elements Equal | Medium | ArraySorting |
| 1594 | Regions Cut By Slashes | Medium | ArrayHash TableDepth-First Search |
| 1595 | Relative Ranks | Easy | ArraySortingHeap (Priority Queue) |
| 1596 | Relative Sort Array | Easy | ArrayHash TableSorting |
| 1597 | Relocate Marbles | Medium | ArrayHash TableSorting |
| 1598 | Remove All Ones With Row and Column Flips | Medium | ArrayMathBit Manipulation |
| 1599 | Remove All Ones With Row and Column Flips II | Medium | ArrayBit ManipulationBreadth-First Search |
| 1600 | Remove Boxes | Hard | ArrayDynamic ProgrammingMemoization |
| 1601 | Remove Comments | Medium | ArrayString |
| 1602 | Remove Covered Intervals | Medium | ArraySorting |
| 1603 | Remove Duplicates from Sorted Array | Easy | ArrayTwo Pointers |
| 1604 | Remove Duplicates from Sorted Array II | Medium | ArrayTwo Pointers |
| 1605 | Remove Element | Easy | ArrayTwo Pointers |
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